Methods of fabricating nozzle plates
US7290860B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2004 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | May 24, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14475
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of making flow feature structures for a micro-fluid ejection head. The method includes the steps of laser ablating a nozzle plate material to provide an elongate fluid chamber and fluid supply channel therein for connecting the fluid chamber with a fluid supply. The fluid chamber has a first length and a first width. An elongate nozzle hole is laser ablated in the nozzle plate material co-axial with the fluid chamber. The nozzle hole has entrance dimensions having a longitudinal axis dimension and a transverse axis dimension such that the longitudinal axis dimension is from about 1.1 to about 4.0 times the transverse axis dimension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.